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Configuration File Format

The configuration file consists of keywords followed by values. You can use optional host stanzas to configure settings specific to individual hosts or groups of hosts. If a setting is configured in more than one place in the file, the value configured further down the list overrides the previous value.

Any line starting with a number sign (#) is a comment. Any empty line is ignored.

Regular Expressions

Regular expressions are evaluated using POSIX-Extended syntax. For details about regular expression rules, see:

Keyword Syntax

Every keyword requires a value. The value can be separated from the keyword by spaces, or optional spaces and exactly one "=". Enclose the value in quotation marks (single or double) if it includes spaces. For example:

key value


key="value with spaces"

key=value1, value2

Keywords are not case sensitive.